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Thread: BMW 850i and BMW 750i engine swap

  1. #1
    Join Date
    Sep 2012
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    06 650i, 92 850i, 06 750

    BMW 850i and BMW 750i engine swap

    Does anybidy know if i can change my 1992 BMW 850i engine with same year or early 90's BMW 750i engine? do i need any computer update or brcket change?

  2. #2
    Join Date
    Jan 2005
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    11/88 E32 750iL+98 E36M3
    https://www.bimmerforums.com/forum/s...rom-a-1988-750

    750iL E32 M70/B50 88-90 0 261 200 156 Bosch Motronic M1.2
    750iL E32 M70/B50 91--> 0 261 200 352 Bosch Motronic M1.7

    850i E31 M70/B50 91--> 0 261 200 352 Bosch Motronic M1.7
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  3. #3
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    Thank you. It seems a possibility but rather risky perhaps. Did you end up doing it or repaired your engine?

  4. #4
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    always depends on the condition of the engine offered and the engine in the car. You know what you have and what trouble the existing engine has, a used engine is always playing a bit risk.
    SHOGUN'S TRICKS AND TIPS FOR THE SEVEN SERIES
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  5. #5
    Join Date
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    06 650i, 92 850i, 06 750
    Quote Originally Posted by shogun View Post
    always depends on the condition of the engine offered and the engine in the car. You know what you have and what trouble the existing engine has, a used engine is always playing a bit risk.

    Thank you .agreed.
    my car has ring blow by on one bank, which is a serious problem. Other than that the engine is tight. Would you mind checking my other post on the matter and provide opinion. I included pressure test and leak test results of my engine near the end of the post there.

    link to engine oil consumption post
    https://www.bimmerforums.com/forum/s...4#post30175644

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